Merge pull request #15 from depot/docker-container

Build Docker container for CLI

.github/workflows/ci.yml

@@ -45,3 +45,33 @@ jobs:
         with:
           version: 1.6.3
           args: build --rm-dist --snapshot
+
+  package:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v3
+      - uses: docker/setup-qemu-action@v1
+      - uses: docker/setup-buildx-action@v1
+      - uses: docker/metadata-action@v3
+        id: meta
+        with:
+          images: ghcr.io/depot/cli
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+      - uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - uses: docker/build-push-action@v2
+        with:
+          push: ${{ github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/v') }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          platforms: linux/amd64,linux/arm64
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

Dockerfile

@@ -0,0 +1,13 @@
+FROM --platform=$BUILDPLATFORM golang:1.18 AS build
+WORKDIR /src
+ARG TARGETARCH
+RUN mkdir /out
+RUN \
+  --mount=target=. \
+  --mount=target=/go/pkg/mod,type=cache \
+  GOARCH=${TARGETARCH} CGO_ENABLED=0 go build -o /out/ ./cmd/...
+
+FROM --platform=$TARGETPLATFORM ubuntu:20.04
+
+COPY --from=build /out/depot /usr/bin/depot
+ENTRYPOINT ["/usr/bin/depot"]